BHP Whyalla DH class

{{Short description|Class of diesel locomotives}}

{{Use dmy dates|date=September 2022}}

{{Infobox locomotive

|name = BHP Whyalla DH class

|powertype = Diesel-hydraulic

|image =

|alt =

|caption =

|builder = Walkers Limited, Maryborough

|ordernumber =

|serialnumber =

|buildmodel =

|builddate = 1962–1968

|totalproduction = 6

|rebuilder =

|rebuilddate =

|numberrebuilt =

|aarwheels =

|uicclass = Bo-Bo

|gauge = {{RailGauge|1067mm|lk=on}}
{{RailGauge|1435mm|allk=on}}

|trucks =

|bogies =

|wheeldiameter =

|trailingdiameter =

|minimumcurve =

|wheelbase =

|length =

|width =

|height =

|axleload =

|weightondrivers =

|locoweight =

|fueltype = Diesel

|fuelcap =

|lubecap =

|coolantcap =

|watercap =

|sandcap =

|powersupply =

|consumption =

|watercons =

|primemover = Cummins NRTO.6BI

|rpmrange =

|enginetype =

|aspiration =

|displacement =

|alternator =

|generator =

|tractionmotors =

|headendpower =

|cylindercount =

|cylindersize =

|transmission =

|multipleworking =

|maxspeed =

|poweroutput =

|tractiveeffort = {{convert|427|kW|hp|abbr=on}}

|factorofadhesion =

|trainheating =

|locobrakes =

|locobrakeforce =

|trainbrakes =

|safety =

|operator = BHP

|operatorclass =

|powerclass =

|numinclass = 6

|fleetnumbers = DH1-DH6

|officialname =

|nicknames =

|axleloadclass =

|locale = Whyalla Steelworks

|deliverydate =

|firstrundate = April 1962

|lastrundate =

|retiredate =

|withdrawndate =

|preservedunits =

|restoredate =

|scrapdate =

|currentowner =

|disposition = 6 scrapped}}

The BHP Whyalla DH class were a class of diesel locomotives built by Walkers Limited, Maryborough for the BHP's Whyalla Steelworks between 1962 and 1968.